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[DOC File]AP Chemistry Summer Assignment
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Sig figs will not be as important in temperature conversions, however, if you do sig figs, remember that this is addition or subtraction, so the sig fig is where the least precise number ends. Covert the following units of pressure: 721 torr ( atm = 0.949 atm. 0.034 kPa ( torr = 0.26 torr. 1.53 atm ( mm Hg = 1162.8 mm Hg or 1160 mm Hg
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0.04500 = ___ sig figs 98,090 = ____ sig figs. RULE #2.4 . Point Zeros ... The teacher said the volume of liquid was 500.0 mL. When measured, a student found it was 499.7 mL. What was the student’s percent error? A standard mass of 250.0 g was placed on …
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[DOC File]Significant Figures Practice Worksheet
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Sig Figs. Rule for . Addition & Subtraction = Least number of . decimal places (highest value) Perform the following calculations and round according to the rule above. 1) 8.20 + 2 = 2) 13.59 + 23.25 + 20 = 3) 42.828 + 67.4629 = 4) 53.4028 - 14 = 5) 39.3 - 0.804 = 6) 91.68 - 19.1 =
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[DOC File]CHM 152 Quiz 1A
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So we must calculate the volume of the 0.500 M HCl solution that contains 0.00531 moles of H+ . To calculate this: 0.00531 moles of H+ / (0.500 mol HCl / L) = 0.0106 L = 10.6 mL HCl (3 sig figs) 11. What volume of 0.49M KOH solution is needed to neutralize 840 mL of a 0.01M HNO3 solution?
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[DOC File]NAME
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How do you know how many sig figs should be in a measurement? Count the number of sig figs in the following measurements. 2390 d. 120. 0.00987 e. 4,900. 0.03056 f. 300. Express the following values in 4 sig figs. a. 56 d. 0.087. b. 87,566 e. 1,999,999. c. 8.09449 f. 0.0063821 UNIT 2 – MATTER . What is matter? What are the two forms of matter ...
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[DOC File]CHAPTER 2 OUTLINE begin on page 28
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0.000 000 000 000 000 000 000 012 is equal to 1.2 x 10 -23. Note that the 1st number must be between 1 and 10, but not include 10. The exponent tells how many places to move the decimal. A positive exponent is a big number; greater than ten. A negative exponent is a small number; less than 1, but greater than zero.
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[DOCX File]Booth's Website
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e.g. 1.15 g / mL is rounded to 1.2 g / mL if the answer should have 2 sig figs e.g. 5.92 cm × 3.0 cm = 17.76 cm 2 final answer needs to have 2 sig figs 18 cm 2 e.g. 17.001 m × 1.8 m = 30.6018 m 2 final answer needs to have 2 sig figs 31 m 2
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[DOCX File]Record the number of sig figs for the following:
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Know how to record the number of sig figs . Know how to convert to and from scientific notation. A student finds the densities of silver, gold and nickel. ... 0.000000025 megameters to cm . 45.6 x 106 microliters to megaliters . Write the correct metric base unit AND the instrument we use to measure the following: length.
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[DOC File]The format of this test is MULTIPLE CHOICE
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a. 1 kilometer = 1000 meters c. 500 centimeters = 0.5 meters b. 100 millimeters = 1 centimeter d. 1 meter = 1000 millimeters ... Identify the number of sig figs in each of the following: ... If you have 66.38 g of KMnO4 find how many moles it is made up of? 5. How many moles of ethane (C2H6) contain 8.46 x 1024 formula units? ...
how many sig figs does 240.0 have

How many sig figs does 0 500 have